Vulnerable User Data Quality Audit 2025
How the 2025 audit of Vulnerable User crash data was done and how to read the results tables on each field page.
Vulnerable User Distracted By
Instructions: Complete this element for all vulnerable users. NOTE: “Presence” is not the same as an activity associated with the person or item. The vulnerable user needs to be engaged in some activity associated with the thing that is causing a distraction. Just having a mobile phone, sandwich, other vulnerable user, etc., nearby isn’t a…
Vulnerable User Contributing Code
Instructions: Complete this element for all vulnerable users. This data element is based on the judgment of the law enforcement officer investigating the crash. Definition: The actions/circumstances of the Vulnerable User that may have contributed to the crash. Rationale: This data element is important to evaluate crash outcomes, identify behavioral concerns, inform law enforcement and…
Vulnerable User Event Sequence
Instructions: Record the sequence of key events or actions involving the vulnerable road user from immediately before the crash until the point of impact or injury. Base entries on available evidence (e.g., witness statements, physical evidence), avoiding speculation. Definition: The events sequence for this crash specific to the vulnerable user. Rationale: Capturing the sequence of…
Vulnerable User Primary Injury Area
Instructions: The principal anatomical region of the body where a vulnerable user sustained the most severe injury as a result of a crash. Definition: The primary or most obvious area of the vulnerable user’s body injured during the crash. Rationale: This element is important for evaluating crash causation, injury severity, and safety system design and…
Vulnerable User Contact Point
Instructions: Record the physical location in which the vulnerable user was placed in contact with the motor vehicle or other vulnerable user involved in the crash. Definition: Location of the first harmful event on the vulnerable user. Rationale: This element is important for evaluating crash causation, injury severity, and safety system design and effectiveness. Code…
Vulnerable User Origin/Destination
Instructions: Collect and record where the vulnerable user was traveling from, and what their intended destination was. Definition: The indication of whether the vulnerable user was walking/cycling/traveling to/from school, a transit location, an ice cream/food truck, a delivery truck, a mailbox, or a school bus/school bus stop Rationale: This element is used to identify behavioral…
Vulnerable User Traffic Control Device
Instructions: Complete this element for all vulnerable users. This data element is seeking the presence of a traffic control device applicable to this vulnerable user, not the actuation of the device or if the device contributed to the crash. Definition: The type of vulnerable user traffic control device applicable to the crash. Rationale: This element…
Vulnerable User Type
Instructions: Indicate the type of Vulnerable User involved in the crash. Definition: The type of Vulnerable User. Rationale: It is important to know the Vulnerable User type for classification purposes in order to evaluate specific countermeasures designed for specific people. Code Attribute Definition Example 1 Pedestrian Used for all pedestrians except for those in or…
Vulnerable User Safety Equipment
Instructions: Indicate the safety equipment in use by the vulnerable user at the time of the crash. Definition: The safety equipment (helmet, protective pads, reflective clothing, lighting) in use by the vulnerable user at the time of the crash. Rationale: Proper classification of the use of available occupant restraint systems and helmet use is vital…